Deprecated
This feature has been removed from the Web standards. Though some browsers may still support it, it is in the process of being dropped. Do not use it in old or new projects. Pages or Web apps using it may break at any time.
The bold() method creates a <b> HTML element that causes a string to be displayed as bold.
Syntax
str.bold()Return value
A string containing a <b> HTML element.
Description
The bold() method embeds a string in a <b> tag: "<b>str</b>".
Examples
Using bold()
The following example uses string methods to change the formatting of a string:
var worldString = 'Hello, world'; console.log(worldString.blink()); // <blink>Hello, world</blink> console.log(worldString.bold()); // <b>Hello, world</b> console.log(worldString.italics()); // <i>Hello, world</i> console.log(worldString.strike()); // <strike>Hello, world</strike>
Specifications
| Specification | Status | Comment |
|---|---|---|
| ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'String.prototype.bold' in that specification. |
Standard | Initial definition. Implemented in JavaScript 1.0. Defined in the (normative) Annex B for Additional ECMAScript Features for Web Browsers. |
| ECMAScript 2017 Draft (ECMA-262) The definition of 'String.prototype.bold' in that specification. |
Draft | Defined in the (normative) Annex B for Additional ECMAScript Features for Web Browsers. |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | (Yes) | 1.0 (1.7 or earlier) | (Yes) | (Yes) | (Yes) |
| Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | (Yes) | (Yes) | 1.0 (1.0) | (Yes) | (Yes) | (Yes) |
See also
Document Tags and Contributors
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Contributors to this page:
eduardoboucas,
fscholz,
teoli,
Mingun,
Sheppy,
ethertank,
evilpie,
Mgjbot,
Sevenspade,
Ptak82,
Maian,
Prodoc,
Dria
Last updated by:
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